We have a multi family rental unit which uses oil for home/water heating.Our tenants are responsible for purchasing their own heating oil.We are trying to figure out a way to determine when/if our tenant is running out of fuel.Our maintenance person has communicated that one unit has repeatedly run out of fuel, creating an increase service cost on their boiler.I know there are WiFi options to meter usage.

In real estate you have to invest a lot of time and money trying to find the right person that "clicks" with you in order to get a client to work with you.

My personal opinions below, with a lot of generalities. 

Personally I like areas like Memphis and Little Rock better but I wouldn't shy away from Birmingham.

Citizens;Native Americans born in the United States;Aliens or persons who are NOT citizens of the U.S. who are or may becomebona fide residents of OklahomaBusiness Entities or Trusts who are similarly attesting that they are either U.S.citizens or NOT U.S. citizens but may become bona fide residents ofOklahoma.

I don't know him personally and I haven't used his product so I can't sit here and give you an honest review.But what I can say is that this statement from his sales page is very suspicious.

We have discussed selling the property and rolling it into a multi-family but again feel like we may be trading a fairly hands off property with good cash flow for one that may be a bit more labor intensive and only yield marginally better performance.Any advice on how to expand our rental portfolio/maximize its performance is greatly appreciated!   

A licensee has infinite more liability than a lay person.

I'm feeling lost—does anyone have any suggestions on what we should do?

Especially since you haven’t seen any suitable replacement property.I will add that you will probably feel really good in a couple of years when you sell it.